Oat beverage and preparation method thereof

Abstract

The invention provides an oat beverage and a preparation method thereof. The preparation method comprises the following steps: (1) adding oat powder (oat rice flour) into water according to a certain ratio to prepare oat original pulp, wherein the concentration of solids is controlled in a range of 1 to 40%, and the water temperature is controlled to be lower than 40 DEG C; (2) adding amylase, evenly mixing, and heating the oat original pulp to a temperature of 55 to 80 DEG C to carry out enzymatic hydrolysis for 10 to 40 minutes; (3) transferring the enzymatic hydrolysate obtained in the step (2) to a centrifuge to remove the peels and residues so as to obtain oat pulp; (4) blending the enzymatic hydrolysate obtained in the step (3), and making the enzymatic hydrolysate go through a homogenizer or directly making the enzymatic hydrolysate go through a homogenizer; (5) adopting a UHT sterilization mode, and carrying out sterilization (enzymatic passivation) at a temperature of 120 to 140 DEG C for 2 to 40 seconds to obtain the oat beverage. The auxiliary material comprises a stabilizer, a buffering agent with a metal chelating and / or buffering effect, and a sweetener.

Description

technical field [0001] The invention relates to an oat beverage and a preparation method thereof. Background technique [0002] Oatmeal is rich in dietary fiber, which can promote gastrointestinal motility. Its efficacy in preventing cardiovascular and cerebrovascular diseases caused by hyperlipidemia and controlling human blood sugar index has been recognized abroad. Oatmeal is the only grain variety that has been certified by the US Federal Food and Drug Administration (FDA) since 1997 and allows the labeling of health functions on its products. And the US FDA approved the first health claim about whole grains in 1999, namely: a diet rich in whole grains and other plant foods and low in total fat, saturated fat and cholesterol can reduce the risk of heart disease and some cancers. Because of its rich nutrition and unique health functions, oatmeal will gradually be favored by people with the change of people's diet structure. [0003] At present, my country's oat products...

AI Technical Summary

Problems solved by technology

The total enzymatic hydrolysis time is 4 to 5 hours. According to the evaporation capacity of the drying tower is 1000kg / h, the concentration after concentration is 30%, and at least 3 tons of concentrated slurry is required per hour. It is difficult to realize industrial continuous production, and the long-term high-temperature product loss of nutrients